<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索列表 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            clearable
            @clear="getUserList"
            placeholder="请输入内容"
            v-model="queryInfo.query"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" width="100px">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="usersStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-delete"
              @click="removeUserByID(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip content="修改角色" placement="top" :enterable="false">
              <el-button
                type="primary"
                size="mini"
                icon="el-icon-s-tools"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      @close="addDialogClosed"
      :visible.sync="addDialogVisible"
      width="50%"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户:{{ userInfo.username }}</p>
        <p>当前的角色:{{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data() {
    //自定义邮箱校验规则
    var checkEmail = (rule, value, callback) => {
      //正则实现校验
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      //合法邮箱，校验通过
      if (regEmail.test(value)) {
        return callback()
      }
      //校验未通过
      callback(new Error('请输入合法邮箱'))
    }
    //自定义手机号校验规则
    var checkMobile = (rule, value, callback) => {
      //正则实现校验
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      //合法手机号，校验通过
      if (regMobile.test(value)) {
        return callback()
      }
      //校验未通过
      callback(new Error('请输入合法手机号'))
    }

    return {
      //获取用户列表参数对象
      queryInfo: {
        query: '', //查询参数，可以为空
        pagenum: 1, //当前页码，不能为空
        pagesize: 2, //每页显示条数，不能为空
      },
      userList: [], //保存用户列表
      total: 0, //用户总人数
      userInfo: {}, //需要分配权限的角色信息
      rolesList: [], //所有角色的数据列表
      selectedRoleId: '', //已选中的ID值
      addDialogVisible: false, //定义添加对话框的显示与隐藏
      editDialogVisible: false, //定义修改对话框的显示与隐藏
      setRoleDialogVisible: false, //定义分配觉得的对话框的显示与隐藏
      addForm: {
        //添加用户的表单数据
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      addFormRules: {
        //添加表单的验证规则对象
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3到10个字符之间',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名的长度在6到15个字符之间',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            trigger: 'blur',
          },
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur',
          },
        ],
      },
      editForm: {
        //添加用户的表单数据
      },
      editFormRules: {
        //修改表单的验证规则对象
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            trigger: 'blur',
          },
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur',
          },
        ],
      },
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取用户列表失败')
      console.log(res.data.users)
      this.userList = res.data.users
      this.total = res.data.total
    },
    //切换页面事件
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`)
      this.queryInfo.pagesize = val
      this.getUserList()
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`)
      this.queryInfo.pagenum = val
      this.getUserList()
    },
    //用户状态改变
    async usersStateChanged(val) {
      const { data: res } = await this.$http.put(
        `users/${val.id}/state/${val.mg_state}`
      )
      if (res.meta.status !== 200) {
        val.mg_state = !val.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //添加用户预校验
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败!')
        }
        //提示用户
        this.$message.success('添加用户成功')
        //刷新列表
        this.getUserList()
      })
      //关闭对话框
      this.addDialogVisible = false
    },
    //修改用户信息
    async showEditDialog(val) {
      const { data: res } = await this.$http.get('users/' + val)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并且提交进行预验证
    editUser() {
      console.log('edit', this.editForm)
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败!')
        }
        //刷新列表
        this.getUserList()
        //提示用户
        this.$message.success('更新用户信息成功!')
      })
      //关闭对话框
      this.editDialogVisible = false
    },
    //删除按钮通过ID删除
    async removeUserByID(val) {
      //弹窗询问是否删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((error) => {
        return error
      })
      //如果用户确认删除返回值为字符串 confirm,用户取消则返回字符串 cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + val)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    //分配角色按钮
    async setRole(data) {
      console.log(data)
      this.userInfo = data
      //在展示对话框之前获取所有角色列表
      const { data: res } = await this.$http.get('roles') 
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //确认更新角色信息
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId,
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    //关闭
    setRoleDialogClosed(){
      this.selectedRoleId=''
      this.userInfo={}
    }
  },
}
</script>

<style>
</style>